DEWALT DARB1F0325 4in AO Fiber Resin Disc 36G， 25-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>High performance aluminum oxide grain allows the disc to break down quickly consistently exposing new grain for faster removal</li><li>Proprietary material mix ensures durable long life discs</li><li>Tough fiber backing prevents tearing</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51%2BwzTWyskL.jpg" noproxy>